rectal vein

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Related to rectal vein: rectal artery, hemorrhoidal vein
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  • noun

Synonyms for rectal vein

any of several veins draining the walls of the anal canal and rectum

References in periodicals archive ?
The blood forms pools, rectal veins swell to accommodate it and may protrude through the anus.
abdominal area and back pressure on rectal veins, further impeding blood flow.
Other triggers include bladder-evaluation procedures, manual fecal evacuation, using a scope to inspect the sigmoid colon (sigmoidoscopy) or the colon (colonoscopy), barium enema, irritant anal suppositories, or prolapsing hemorrhoids (enlarged rectal veins that protrude past the anal sphincter).
Don't lift weights because this increases intra-abdominal pressure and back pressure in the rectal veins.